Late spring typically falls in the period from May through June in the Northern Hemisphere. It is characterized by longer, warmer days, although night temperatures may still be cool with some risk of frost in certain areas. This period is often considered a busy time for planting in gardening terms, as weather conditions improve but caution is still needed for frost-sensitive plants. More specifically:

• Late spring is generally seen as starting sometime in May and running through June.
• In gardening contexts, late spring corresponds to when the days get warmer and longer, but nights can still be somewhat cold with potential frost in some regions.
• In terms of months, May is often considered late spring, with early summer following in June.
• The exact timing can vary based on location and year-to-year weather conditions.

Thus, late spring is roughly the latter part of spring, from May into June, before summer officially begins around late June.